package com.heima.behavior.service.impl;
import java.util.Date;

import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApReadBehaviorService;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.ReadBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApReadBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;
import org.springframework.stereotype.Service;

@Service
public class ApReadBehaviorServiceImpl implements ApReadBehaviorService {

    @Autowired
    private ApBehaviorEntryService apBehaviorEntryService;

    @Autowired
    private MongoTemplate mongoTemplate;

    @Override
    public ResponseResult readBehavior(ReadBehaviorDTO dto) {
        //1. 校验参数 文章id必须传
        if (dto == null || dto.getArticleId() == null) {
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID,"文章id不能为空");
        }
        ApUser user = AppThreadLocalUtils.getUser();
        if (user == null){
            user = new ApUser();
        }
        //2. 根据登录用户id 或 设备id查询行为实体数据(阅读操作可不登录)
        ApBehaviorEntry apBehaviorEntry = apBehaviorEntryService.findByUserIdOrEquipmentId(user.getId(), dto.getEquipmentId());
        //3. 判断阅读行为是否存在
        Query query = Query.query(Criteria.where("articleId").is(dto.getArticleId()).and("entryId").is(apBehaviorEntry.getId()));
        ApReadBehavior apReadBehavior = mongoTemplate.findOne(query, ApReadBehavior.class);

        if (apReadBehavior != null) {
            //4. 存在  将阅读行为的count字段加1 并修改
            apReadBehavior.setCount((short) (apReadBehavior.getCount() + 1));
            apReadBehavior.setUpdatedTime(new Date());
            mongoTemplate.save(apReadBehavior);
        }else {
            //5. 不存在  创建阅读行为 并初始化count字段值为 1
            apReadBehavior = new ApReadBehavior();
            apReadBehavior.setEntryId(apBehaviorEntry.getId());
            apReadBehavior.setArticleId(dto.getArticleId());
            apReadBehavior.setCount((short)1);
            apReadBehavior.setCreatedTime(new Date());
            apReadBehavior.setUpdatedTime(new Date());
            mongoTemplate.save(apReadBehavior);
        }
        return ResponseResult.okResult();
    }
}
